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Articles on Trending Technologies
Technical articles with clear explanations and examples
Translation and Post-Translational Modifications
Introduction Translation and post-translational modifications (PTMs) are two essential processes that play a critical role in the production and function of proteins in living cells. Translation is the process by which the genetic information encoded in the messenger RNA (mRNA) is converted into a functional protein. PTMs are covalent modifications that occur after translation and affect the structure, activity, localization, and stability of proteins. In this article, we will discuss translation and post-translational modifications in detail, including the steps involved, types of PTMs, and their applications. Translation Translation is a complex process that occurs in the cytoplasm of eukaryotic ...
Read MoreTranscription Factors: Definition, Effects, and types
Introduction Transcription factors are proteins that regulate gene expression by binding to specific sequences of DNA in a cell’s nucleus. They play an essential role in the process of transcription, which is the first step in the expression of genetic information. In this tutorial, we will explore the different types of transcription factors, their functions, and their clinical significance. What are Transcription Factors? Transcription factors are proteins that bind to specific DNA sequences in the promoter region of a gene and regulate the initiation of transcription. They can activate or repress gene expression and play a crucial role ...
Read MoreTermination Codon or Stop Codon
Introduction The genetic code is the set of rules that determine the correspondence between nucleotide triplets (codons) and the amino acids they specify. In the language of genetics, the Stop codon or termination codon is a nucleotide triplet in mRNA that signals the end of the protein-coding sequence. Stop codons are essential for the proper termination of protein synthesis and play a vital role in the regulation of gene expression. What is Stop Codon? Stop codon, also known as termination codon, is a set of three nucleotide sequences in the messenger RNA (mRNA) that signals the end of ...
Read MoreStructure and Composition of Bio-membranes of a cell
Introduction and History The membrane is an essential component of every living cell, which separates the cell from its external environment and provides a barrier to the free movement of molecules. The discovery of the cell membrane is attributed to the experiments of Robert Hooke and Anton van Leeuwenhoek in the seventeenth century, who first observed cells and bacteria under a microscope. In the nineteenth century, researchers discovered that cells were surrounded by a thin layer of material, which later became known as the cell membrane. The concept of the cell membrane’s structure and composition began to take shape ...
Read MoreStart Codon: Definition and Importance
Introduction Protein synthesis is a fundamental process that occurs in all living organisms. It involves the production of proteins from the genetic information encoded in DNA. The process of protein synthesis involves multiple steps, one of which is the initiation of translation. The initiation of translation is regulated by a start codon, also known as an AUG codon. Definition of Start Codon/AUG Codon The start codon, also known as the initiation codon or AUG codon, is a three-nucleotide sequence of mRNA that signals the ribosome to begin protein synthesis. It is always the first codon in an mRNA sequence ...
Read MoreDifference Between Acetone and Paint Thinner
Acetone and paint thinner are two commonly used solvents that are used in various applications. While both of these substances are used as solvents, they have different chemical compositions and properties. In this essay, we will explore the differences between acetone and paint thinner. What is Acetone? This is a volatile, colorless as well as a flammable liquid. It is the smallest and simplest ketone and is miscible with water. It is used as a solvent, consumed as acetone cyanohydrin as well as a precursor to methyl methacrylate. As a solvent, it dissolves synthetic fibers as well as plastics, while ...
Read MoreStages of Transcription
Introduction Transcription is a process that takes place in all living organisms, where genetic information in the form of DNA is converted into a functional molecule of RNA. RNA is a polymer of nucleotides that plays a key role in the synthesis of proteins. Transcription is the first step in gene expression and is a complex process that involves a series of stages. In this tutorial, we will explore the different stages of transcription in detail. Initiation The initiation stage of transcription begins with the recognition of a specific region of DNA called the promoter by RNA polymerase, the ...
Read MoreRNA Editing: An Overview
Introduction RNA, or Ribonucleic Acid, is a vital molecule in the process of protein synthesis. It serves as the template for the formation of proteins, which are the building blocks of life. RNA is synthesized from DNA, or Deoxyribonucleic Acid, and carries the genetic information from the DNA to the ribosome, where it is translated into proteins. RNA Editing is the process of altering the genetic information of RNA molecules. This process can involve the addition, deletion, or modification of nucleotides, which are the building blocks of RNA. RNA Editing is an essential process that plays a crucial role ...
Read MoreRibosomal RNA: Types and Functions
Introduction Ribosomal RNA (rRNA) is a type of RNA that plays a vital role in protein synthesis. It forms the major structural and functional components of ribosomes, the molecular machines that translate mRNA into proteins. Ribosomes are complex macromolecular assemblies composed of ribosomal RNA and various proteins, and they are found in all living cells, from bacteria to humans. What is Ribosomal RNA? Ribosomal RNA is a type of RNA that serves as the structural and functional components of ribosomes. Ribosomes are the site of protein synthesis in cells, where the information encoded in messenger RNA (mRNA) is ...
Read MoreReverse Transcriptase: Structure and Applications
Get to Know Reverse Transcriptase Reverse transcriptase is an RNA-dependent DNA polymerase that is capable of synthesizing a complementary DNA strand from an RNA template. The enzyme was first discovered in retroviruses, which are RNA viruses that use reverse transcriptase to convert their RNA genomes into DNA. Reverse transcriptase is also found in other retrotransposons, and telomerase, which are involved in maintaining the length of the chromosome ends. Structure Reverse transcriptase is a multifunctional enzyme that consists of two domains − An RNA-dependent DNA polymerase domain and A ribonuclease H (RNase H) domain. The ...
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